Allens Performance Ltd.

HSR48 (TM48-2) Data Set

Mikuni recommend that engines producing more than 120 hp should use an electric fuel pump at less than 4psi with the 2.3mm float valve assy

The carb can be mounted using the HS42/062-48 manifold. This should fit an S&S ‘G’ manifold but it will add a little extra to the total length of the installation.

MOUNT TYPE Spigot MAIN JET N100604-Size 190
TICKOVER POSITION Left PILOT JET VM28/486-Size 25
COLD START POSITION Right NEEDLE JET 784-430000-Size (723) Y-6
COLD START TYPE Cable JET NEEDLE 8CFY15-97 Clip groove #3
AIR SCREW POSITION Left STARTER JET Fixed
FLANGE PITCH (MM) PILOT AIR JET
CLAMP DIA (MM) PILOT AIR SCREW VM20/584-Size
FRONT SPIGOT DIAMETER (MM) MAIN AIR JET BS30/97-Size 0
REAR SPIGOT DIAMETER (MM) POWER JET
LENGTH (MM) THROTTLE VALVE
HEIGHT OVER BORE CENTRELINE (MM) FLOAT VALVE 786-27001-1A-Size 4.5
HEIGHT UNDER BORE CENTRELINE (MM) PUMP NOZZLE TM42/11-Size 0.70
FUEL INLET POSITION Left
FLOAT HEIGHT (MM) 18
FUEL SPIGOT (MM) 8